The cracked version might try to connect to Adobe’s activation servers. Use the portable launcher’s built-in firewall block or manually add an outbound rule.
In general, portable software is designed to run from a removable storage device (like a USB drive) without needing a formal installation process on the host computer. While this sounds convenient for moving between workstations, using unofficial portable versions of Adobe software carries significant risks. Risks of Using Unofficial Portable Versions Adobe Illustrator CC Portable